|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace TijsVerkoyen\CssToInlineStyles\Css; |
|
4
|
|
|
|
|
5
|
|
|
use TijsVerkoyen\CssToInlineStyles\Css\Rule\Processor as RuleProcessor; |
|
6
|
|
|
use TijsVerkoyen\CssToInlineStyles\Css\Rule\Rule; |
|
7
|
|
|
|
|
8
|
|
|
class Processor |
|
9
|
|
|
{ |
|
10
|
|
|
/** |
|
11
|
|
|
* Get the rules from a given CSS-string |
|
12
|
|
|
* |
|
13
|
|
|
* @param string $css |
|
14
|
|
|
* @param Rule[] $existingRules |
|
15
|
|
|
* |
|
16
|
|
|
* @return Rule[] |
|
17
|
|
|
*/ |
|
18
|
|
|
public function getRules($css, $existingRules = array()) |
|
19
|
|
|
{ |
|
20
|
|
|
$css = $this->doCleanup($css); |
|
21
|
|
|
$rulesProcessor = new RuleProcessor(); |
|
22
|
|
|
$rules = $rulesProcessor->splitIntoSeparateRules($css); |
|
23
|
|
|
|
|
24
|
|
|
return $rulesProcessor->convertArrayToObjects($rules, $existingRules); |
|
25
|
|
|
} |
|
26
|
|
|
|
|
27
|
|
|
/** |
|
28
|
|
|
* Get all media queries from the given css string. Returns an empty array |
|
29
|
|
|
* when non were found. |
|
30
|
|
|
* |
|
31
|
|
|
* @param string $css |
|
32
|
|
|
* @return array |
|
33
|
|
|
*/ |
|
34
|
|
|
public function getMediaQueries(string $css) |
|
35
|
|
|
{ |
|
36
|
|
|
if (preg_match_all('/@media [^{]*+{([^{}]++|{[^{}]*+})*+}/', $css, $matches)) { |
|
37
|
|
|
return $matches[0]; |
|
38
|
|
|
} |
|
39
|
|
|
return []; |
|
40
|
|
|
} |
|
41
|
|
|
|
|
42
|
|
|
/** |
|
43
|
|
|
* Get the CSS from the style-tags in the given HTML-string |
|
44
|
|
|
* |
|
45
|
|
|
* @param string $html |
|
46
|
|
|
* |
|
47
|
|
|
* @return string |
|
48
|
|
|
*/ |
|
49
|
|
|
public function getCssFromStyleTags($html) |
|
50
|
|
|
{ |
|
51
|
|
|
$css = ''; |
|
52
|
|
|
$matches = array(); |
|
53
|
|
|
$htmlNoComments = preg_replace('|<!--.*?-->|s', '', $html); |
|
54
|
|
|
preg_match_all('|<style(?:\s.*)?>(.*)</style>|isU', $htmlNoComments, $matches); |
|
55
|
|
|
|
|
56
|
|
|
if (!empty($matches[1])) { |
|
57
|
|
|
foreach ($matches[1] as $match) { |
|
58
|
|
|
$css .= trim($match) . "\n"; |
|
59
|
|
|
} |
|
60
|
|
|
} |
|
61
|
|
|
|
|
62
|
|
|
return $css; |
|
63
|
|
|
} |
|
64
|
|
|
|
|
65
|
|
|
/** |
|
66
|
|
|
* @param string $css |
|
67
|
|
|
* |
|
68
|
|
|
* @return string |
|
69
|
|
|
*/ |
|
70
|
|
|
private function doCleanup($css) |
|
71
|
|
|
{ |
|
72
|
|
|
// remove charset |
|
73
|
|
|
$css = preg_replace('/@charset "[^"]++";/', '', $css); |
|
74
|
|
|
// remove media queries |
|
75
|
|
|
$css = preg_replace('/@media [^{]*+{([^{}]++|{[^{}]*+})*+}/', '', $css); |
|
76
|
|
|
|
|
77
|
|
|
$css = str_replace(array("\r", "\n"), '', $css); |
|
78
|
|
|
$css = str_replace(array("\t"), ' ', $css); |
|
79
|
|
|
$css = str_replace('"', '\'', $css); |
|
80
|
|
|
$css = preg_replace('|/\*.*?\*/|', '', $css); |
|
81
|
|
|
$css = preg_replace('/\s\s++/', ' ', $css); |
|
82
|
|
|
$css = trim($css); |
|
83
|
|
|
|
|
84
|
|
|
return $css; |
|
85
|
|
|
} |
|
86
|
|
|
} |
|
87
|
|
|
|
tijsverkoyen /
CssToInlineStyles
